Unverified50% confidenceConceptExact time
Cache hit rate refers to the proportion, in continuous conversations or repeated requests, in which the model provider caches and reuses context with the same prefix and bills it at a discounted price; in programming agent workflows, the higher the cache hit rate, the less actual token billing and the faster the response.
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Long-term
Relevance
10/19/2026
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Related Claims
UnverifiedCached input refers to pre-storing the same context on the server side so that subsequent requests can reuse the cache without repeated computation, and is billed at a lower price.77% similarVerifiedToken caching (Prompt Caching) is a cost-optimization mechanism in large model APIs; when the same prefix appears repeatedly across multiple requests, the computation result can be cached and charged at a lower rate.77% similarVerifiedSome service providers have introduced cache-hit pricing, charging at a lower discounted rate when repeated long system prompts hit the cache.76% similarUnverifiedPrompt caching usually has an expiration period, requires rewriting after content changes, and the cache discount applies only to the input side, while output tokens are still billed at the standard rate.74% similarUnverifiedUnder the mechanism in which large models bill by input and output tokens, resending the full browsing history every day causes the input token cost to grow linearly with the number of days of use; having the client perform deduplication, aggregation, or incremental summarization can keep the input volume at a roughly constant level.74% similar
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